Stuttering and Natural Speech Processing of Semantic and Syntactic Constraints on Verbs

Autor/inn/en	Weber-Fox, Christine; Hampton, Amanda
Titel	Stuttering and Natural Speech Processing of Semantic and Syntactic Constraints on Verbs
Quelle	In: Journal of Speech, Language, and Hearing Research, 51 (2008) 5, S.1058-1071 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2008/07-0164)
Schlagwörter	Visual Stimuli; Inner Speech (Subvocal); Articulation (Speech); Semantics; Verbs; Brain; Language Processing; Grammar; Neurolinguistics; Language Research; Diagnostic Tests; Stuttering; Adults + Suchen Sie Ihr Suchwort? Inneres Sprechen; Semantik; Gehirn; Sprachverarbeitung; Grammatik; Neurolinguistisches Programmieren; Sprachforschung; Diagnostic test; Diagnostischer Test; Stammer; Stottern
Abstract	Purpose: Previous findings from event-related brain potentials (ERPs) indicate that adults who stutter (AWS) exhibit processing differences for visually presented linguistic information. This study explores how neural activations for AWS may differ for a linguistic task that does not require preparation for overt articulation or engage the articulatory loop for silent speech. Method: Syntactic and semantic processing constraints were examined in AWS and adults who are normally fluent (AWNF) by assessment of their behavioral performance and ERPs in a natural speech listening task. Results: AWS performed similarly to AWNF in identifying verb-agreement violations and semantic anomalies, but ERPs elicited by syntactic and semantic constraints indicated atypical neural functions for AWS. ERPs of the AWNF displayed an expected N400 for reduced semantic expectations and a typical P600 for verb-agreement violations. In contrast, both N400s and P600s for the semantic and verb-agreement conditions were observed in the ERPs of the AWS. Conclusions: The findings suggest that AWS may engage semantic-syntactic mechanisms more generally for semantic and syntactic processing. These findings converge with earlier studies using visual stimuli to indicate that whereas linguistic abilities are normal in AWS, underlying brain activity mediating some aspects of language processing may function differently. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://www.asha.org/about/publications/journal-abstracts/jslhr/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10